Here at SWARM, a design and app development company based in New York, we are focused on exploring new ways to improve Android apps. Here’s a great tip on how to add some sizzle to your app, simply by using the transition and animation support built into the fragment framework. Let’s talk about Android Fragment Animations:

Transitions

To use one of the built-in Transitions, use the setTranstion() method:

getSupportFragmentManager()
  .beginTransaction()
  .setTransition( FragmentTransaction.TRANSIT_FRAGMENT_OPEN )
  .show( m_topFragment )
  .commit()

 

Custom Animations

You can also customize the animation by using the setCustomAnimations() method:

getSupportFragmentManager()
  .beginTransaction()
  .setCustomAnimations( R.anim.slide_in_left, 0, 0, R.anim.slide_out_left)
  .show( m_topFragment )
  .commit()

Multiple Animations

Finally, It’s also possible to kick-off multiple fragment animations in a single transaction. This allows for a pretty cool effect where one fragment is sliding up and the other slides down at the same time:

getSupportFragmentManager()
  .beginTransaction()
  .setCustomAnimations( R.anim.abc_slide_in_top, R.anim.abc_slide_out_top ) // Top Fragment Animation
  .show( m_topFragment )
  .setCustomAnimations( R.anim.abc_slide_in_bottom, R.anim.abc_slide_out_bottom ) // Bottom Fragment Animation
  .show( m_bottomFragment )
  .commit()

Checkout the code for this sample on Github: https://github.com/swarmnyc/AndroidFragmentAnimations. Look forward to your thoughts.